Hi,
I am using a React + Node template (pre Remix).
I am facing issues -
- I am defining the SHOPIFY_BASE_URL variable for API endpoints, but it is coming as undefined when I try to use it in my web/frontend folder, is there any specific format w.r.t. to defining and using env variables in the Shopify React app template.
- I am defining the endpoints constant inside a new folder web/api/frontend/api/constants.js but when I'm trying to import them and use them I'm facing an issue in my app, it throws the following error in the console.

- I'm trying to install npm packages for React inside the web/frontend/ folder but it is corrupting my node modules and throwing random errors, clean re-install of node modules also doesn't fix it, I have to replace the node modules from a backup of the same Shopify app I have as a .zip file.
How can I work to resolve these issues, is there any guidelines/best practices or some tutorial (couldn't find much regarding these issues in shopify.dev)